Less than a week after she announced her split from her husband of 25 years, Mario, Ramona Singer is coming clean about why she finally decided to end her marriage.

“I was ready to forgive him,” she revealed in the newest issue of People magazine, but soon found out he was still talking to his alleged mistress.

A few days after Ramona publicly announced the breakup via Facebookher ex was spotted in the Hamptons with Kyle “Kasey” Dexter.

“I just couldn’t trust him anymore,” she admitted.

The “Real Housewives of New York City” star first filed for divorce in January, but the couple reconciled soon after. Now that she’s left him for good, she says there are “no regrets.”

“I have a new life, and I think this means better and bigger things,” she said.